Refraction Microtremor

Refraction Microtremor (ReMi) is a sophisticated geophysical method used for subsurface investigations, with a specific focus on determining near-surface shear wave velocities. In ReMi, microtremors, or ambient vibrations, are recorded at the surface using an array of seismometers. The collected data is then analyzed to extract the dispersion characteristics of surface waves, offering valuable insights into the subsurface’s mechanical properties.

One of the key strengths of ReMi lies in its ability to provide detailed information about the shear wave velocity profile, particularly in the uppermost layers of the subsurface. This makes it a powerful tool for characterizing near-surface materials, assessing the stability of foundations, and identifying potential seismic hazards.

However, it’s important to acknowledge certain limitations. The depth of investigation with ReMi is generally limited to the upper tens of meters, and the accuracy of results can be influenced by factors such as the presence of low-velocity layers or the complexity of subsurface structures.

Choose Refraction Microtremor when seeking a non-invasive and efficient method for evaluating near-surface seismic properties. Its application is particularly beneficial for geotechnical studies, civil engineering projects, and seismic site characterization, providing critical information for professionals in fields such as geophysics, civil engineering, and seismology.